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Finding the Fourth Proportional to 691,782.20, 954,296.32 and 562,864.80

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Solution

The fourth proportional to 691,782.20, 954,296.32 and 562,864.80 is: 776,457.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,782.20 : 954,296.32 = 562,864.80 : x
  2. Step 2: Convert to fraction form
    691,782.20/954,296.32 = 562,864.80/x
  3. Step 3: Cross multiply
    691,782.20x = 954,296.32 × 562,864.80
  4. Step 4: Simplify right side
    691,782.20x = 537,139,807,297.54
  5. Step 5: Solve for x
    x = 537,139,807,297.54/691,782.20
  6. Step 6: Final answer
    x = 776,457.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.